Rohde & Schwarz R&S ZNA Series - 3.5.7.6 Mounting a DUT; 3.5.7.7 Measurement

Getting Started
R&S
®
ZNA
106User Manual 1178.6462.02 ─ 29
The characteristic data of a particular R&S ZV-Z210 is stored on a USB stick shipped
with the kit, and must be installed manually, before the kit can be used.
With an additional reference receiver calibration at one of the converter ports, a full n-
port system error correction at n > 1 converter ports of the same waveguide band can
be extended to a SMARTerCal. A SMARTerCal enables (relative) phase and (absolute)
power accurate measurements of all involved a- and b-waves.
Refer to the documentation of your calibration kit and to Chapter 4.5, "Calibration",
on page 186 for more information.
3.5.7.6 Mounting a DUT
The DUT must be screwed to the 1 mm test port connector at the front of the diplexer.
A tight connection is essential to ensure precise calibration and measurement results.
Depending on the connectors of the DUT, possibly additional adapters are required.
For n-port measurements, n external test sets must be connected to one DUT. Use the
adjustable feet of the test sets to align the DUT accurately.
3.5.7.7 Measurement
After power calibration and system error correction, mount the DUT (see Chap-
ter 3.5.7.6, "Mounting a DUT", on page 106).
Measurements involving converters can be performed like other measurements. All
measured quantities (S parameters, wave quantities, ratios etc.) are available. Power
sweeps and automatic level control can only be activated, if leveling data are available
(see Chapter 3.5.7.4, "Scalar power calibration and leveling (optional)", on page 102).
The Port Settings dialog dialog shows the frequency and power sweep ranges of all
implied signals, including RF IN, LO IN and IF output.
●
After power-up, a warm-up time of one hour is required to ensure accurate mea-
surements.
●
Measurement results can be degraded if the setup is exposed to an electromag-
netic field at the IF frequency (default: 279 MHz).
●
For pulsed signals, the default IF frequency of 279 MHz cannot be used, because
a narrow-band filter is applied at this frequency. Use the "Converter Configuration"
dialog to select an IF frequency in the direct path between 30 kHz and 30 MHz
instead (see Figure 3-23).
●
If a power splitter is used and the phases of S
ij
and S
ji
deviate or drift by equal
magnitude, but opposite sign, check the phase stability of the LO paths of the con-
verters.
Getting started with R&S
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